I'm painting the outside of the house, in between the showers, and it's taking a while. Just been re-rendered. Smooth finish and using smooth masonry paint. Has anyone used these new power fed paint rollers and if so did it help. Was it much faster. Heavier. Difficult to control paint flow. Brilliant device.
Any other plusses or minuses?

If they are a very good thing recommendations on a brand/model please.

Use a pad. They hold a lot more than brushes, so cover more area.

Discussed briefly here